102120030321210 has 256 divisors, whose sum is σ = 314674950919680. Its totient is φ = 23290972139520.

The previous prime is 102120030321203. The next prime is 102120030321223. The reversal of 102120030321210 is 12123030021201.

102120030321210 is a `hidden beast` number, since 10 + 2 + 120 + 0 + 3 + 0 + 321 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 128707432 + ... + 129498428.

It is an arithmetic number, because the mean of its divisors is an integer number (1229199027030).

Almost surely, 2^{102120030321210} is an apocalyptic number.

102120030321210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102120030321210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157337475459840).

102120030321210 is an abundant number, since it is smaller than the sum of its proper divisors (212554920598470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102120030321210 is a wasteful number, since it uses less digits than its factorization.

102120030321210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793598 (or 793592 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102120030321210 its reverse (12123030021201), we get a palindrome (114243060342411).

The spelling of 102120030321210 in words is "one hundred two trillion, one hundred twenty billion, thirty million, three hundred twenty-one thousand, two hundred ten".